I've been using monit to monitor the processes on my servers for several years now. During this time I've written test-cases for several daemon processes, especially tailored for Debian GNU/Linux (Unstable/Squeeze):

• apache2
• apt-cacher-ng
• atd
• avahi
• bind
• clamav
• couchdb
• courier-auth
• courier-imap
• courier-mta
• cron
• dhcpd
• dovecot
• ejabberd
• gnump3d
• slapd
• memcached
• mysql
• nagios3
• nscd
• ntp
• postgresql-8.4
• puppet
• samba
• smartd
• snmpd
• spamassassin
• squid3
• ssh
• supervisor
• syslog
• tomcat6
• tryton

All of them are now available at this location: http://storage.fladi.at/~FladischerMichael/monit/

Feel free to use them in your own envirnoment or just an example on how to monitor a service. Feedback and improvements are always welcome.